202 safford: new genus rolliniopsis 



sometimes slightly compressed, 7 to 10 mm. long, 4 to 5 mm. in diam- 

 eter, the testa light brown, slightly wrinkled by the corrugations 

 of the inclosed ruminate endosperm, the hilum basal, small, and 

 inconspicuous. 



Type in the U. S. National Herbarium, No. 762291, collected in the 

 vicinity of Machado Portella, State of Bahia, Brazil, June 19-23, 

 1915, by J. N. Rose and P. G. Russell (No. 19963). 



The specific name chosen for this plant was suggested by its Portu- 

 guese vernacular name, fruta de macaco [monkey fruit]. 



3. Rolliniopsis parviflora (St. Hil.) Safford. 



Rollinia parviflora St. Hil. Fl. Bras. Merid. 1 : 30. 1825. 



A small tree with rufous-pubescent branchlets. Leaf blades 4 to 

 6.4 cm. long, 1.8 to 2.5 cm. broad, oblong, acuminate at the apex, 

 acute at the base, glabrous above, puberulous beneath, the midrib 

 prominent, ferruginous-pubescent, the lateral nerves parallel; petioles 

 about 4 mm. long, nearly terete, ferruginous-pubescent. Flowers 

 small, the peduncles solitary, 4 to 6 mm. long, recurved, slightly thick- 

 ened at the apex, ferruginous-villous. Calyx ferruginous-villous, 

 3-lobed, the divisions broadly ovate, acute. Corolla 3 to 5 mm. long 

 and broad, villous, green to rufescent, 6-lobed; lobes thick and obtuse, 

 horizontally spreading, those corresponding to the inner petals of other 

 Annonaceae a little narrower than the others, nearly orbicular. Torus 

 convex on top, bearing a cluster of about 15 carpels at its apex and 

 below these a mass of minute, closely crowded stamens (about 1 mm. 

 long). Fruit a cluster of small oblong-ovoid sessile drupes, these 1 cm. 

 long, 5 mm. in diameter, closely crowded on the indurated receptacle, 

 but quite distinct and falling off separately when mature, like those of 

 Guatteria. 



Type collected by Augustin St. Hilaire "in sylvis primaevis montis 

 Tejuca prope Sebastianopolim [Rio cle Janeiro]. Florebat Novembre." 



Rolliniopsis parviflora can readily be distinguished from the two pre- 

 ceding species as well as from R. leptopetala by the minute size of its 

 flowers and the relatively short and thick lobes of the corolla. 



In the type material collected and described by St. Hilaire there were 

 no specimens of fruit and the fruit remained unknown until 1905, 

 when R. E. Fries described it from specimens collected by Riedel in 

 the vicinity of Rio de Janeiro. 3 In the amended description of this 



3 "Die Friichte, die fur diese Art bisher nicht bekannt sind, bieten ein sehr 

 eigenthumliches Aussehen dar. Die Einzelfriichte sind nicht in einem Syncar- 

 pium vereint; sie sind liinglich eiformig . . . und sitzen ungestielt auf dem 

 Receptaculum dicht zusammen, unter einander jedoch frei; sie fallen auch von 

 einander getrennt ab, wie z. B. bei den Guatterien. Hierin weicht R. -parviflora 

 von den allermeisten iibrigen Rollinia-Arten ab, von denen man Friichte kennt; 

 nur R. leptopetala R. E. Fr. hat die Frucht auf ahnliche Weise gebaut." — R. E. 

 Fries, in Arkiv for Botanik, 5 4 : 20. 1905. 



